Employees of the Grand Teton National Park, which is 16 kilometers from Yellowstone National Park, have closed some areas due to growing cracks. At the same time, the faults are not associated with a possible eruption of a supervolcano. This is reported by Science Alert.
According to the newspaper, the rangers found cracks in the rocks up to 30 meters long in the area of the Hidden Falls. This place was closed to tourists as there is a danger of stones falling on people.
The Greater Yellowstone ecosystem includes the Grand Teton, Yellowstone National Park, and adjacent forests and other conservation areas. Although it is not located above the magma chambers, seismic activity has also been observed in the area. According to experts, periodic tremors are the norm, and it was they who could cause cracks.
In the spring of 2018, the unusual activity of the world's largest geyser, Steamboat, was recorded in Yellowstone National Park. In just six weeks, there were three powerful eruptions, although the intervals between the outbursts of water are usually from one month to five years.
The Yellowstone supervolcano last erupted two and a half million years ago. A series of eruptions left on the surface giant calderas tens of kilometers across, but a repetition of such catastrophic events is still unlikely.